Finding the Fourth Proportional to 518,713.12, 777,849.36 and 203,119.84
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Solution
The fourth proportional to 518,713.12, 777,849.36 and 203,119.84 is: 304,593.49
Step by Step Solution
- Step 1: Write the proportion equation
518,713.12 : 777,849.36 = 203,119.84 : x - Step 2: Convert to fraction form
518,713.12/777,849.36 = 203,119.84/x - Step 3: Cross multiply
518,713.12x = 777,849.36 × 203,119.84 - Step 4: Simplify right side
518,713.12x = 157,996,637,547.30 - Step 5: Solve for x
x = 157,996,637,547.30/518,713.12 - Step 6: Final answer
x = 304,593.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.